Finally, both phonetic and duration information extracted from the score have been extensively used in alignment-related tasks, such as audio-to-score alignment and audio-to-lyrics alignment. For example, Gong et al. [1]} construct a left-to-right HSMM using phonetic and duration information.
Or Dzhambazov et al. [2]} use a similar approach for aligning polyphonic audio. Analogously, the proposed approach explores the use of both phonetic and duration information (available in scores) to tackle the matching ambiguity problem existing in jingju music.
